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Line 1: {{nofootnotes\|date=September 2012}} '''ISDN-oriented Modular Interface''' (IOM) is a system architecture and its bus for communication between various [[VLSI]] [[ICIntegrated circuit\|ICs]]s for the lower layers (ref. [[OSI model]]) of [[ISDN]]. It was developed by [[Siemens]] (today: [[Infineon]]), current revision is IOM-2. Its purpose is to enable modularity. Second sources are [[AMD]], [[Alcatel]], [[Plessey]]. IOM-2 is a 4-wire serial, full-duplex link. 2 operation modes are available: line card mode and terminal mode; which differ only in number and purpose of the channels. Signals are:

ISDN-oriented Modular Interface: Difference between revisions